Orange Dodge Charger - Very dangerous driver

Today on my drive home, on Piney Orchard Pkwy, I had a run-in with a guy driving the type of car in the subject.  He was driving at a high rate of speed and swerving in and out of cars, tailgating dangerously close.  When he pulled up next to me he obviously yelled F U Ahole and swerved around me and sped off.  He turns left onto Stream Valley and then the 2nd left off there.  I see this same car driving this way, daily, as I wait for my kids bus.  He is about 40, big guy looks either Hawaiian or Samoan.  Black hair.  Angry face.  Haha.  I have his license plate # as it is personalized.  I know I'm not the first who has seen this guy.  What can I legally do?  It's my word against his unless others come forward...this man is a danger to our community.